Hillary Clinton: Can a secretary of state make it to the White House?

Former Secretary of State Henry Kissinger and Secretary of State Hillary Rodham Clinton talk during an interview by PBS' Charlie Rose, Wednesday, April 20, 2011, at the State Department in Washington. (AP Photo/Alex Brandon)

Hillary Clinton: Can a secretary of state become president?

When Hillary Clinton ran for president in 2008, pundits noted that it had been decades since a senator moved into the White House.If she runs in 2016, she'll be up against an even longer curse. It's been more than a century and a half since a secretary of state became president.The topic came up Wednesday when former Secretary of State Henry Kissinger praised Clinton at an awards dinner, giving what some said sounded like an endorsement.”At least four secretaries of …